iPhone OS 3.0 GM is Released to iPhone Developers.

Following the WWDC 2009 Keynote, Apple releases iPhone OS 3.0 GM to iPhone Developers.

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iPhone OS 3.0 GM bears 7a341 build number was finalized in May 22nd, 2009. Apple will make iPhone OS 3.0 avaialble for public on June 17th, 2009 two days ahead of the release of iPhone 3G S.

iPhone OS 3.0 requires iTunes 8.2.

iphone_os_3.0_gm_seed__iphone__7a341.dmg | 229.4MB
iphone_os_3.0_gm_seed__iphone_3g__7a341.dmg | 230.2MB

For those whose looking for iPhone OS 3.0 GM download, please read the following advisory from Apple:

Updating devices to iPhone OS 3.0 GM Seed software. This version of  iPhone
OS 3.0 should only be deployed on devices dedicated for  iPhone OS 3.0 GM
Seed software development. By installing iPhone OS 3.0 GM Seed software
on your Authorized Test Devices, these Devices are permanently “locked”
into testing mode and cannot be restored to an earlier release of iPhone OS.
Bear this in mind before installing the software.

It is not known yet if iPhone OS 3.0 GM requires the iPhone to be registered for development. Stay tuned.

Please be careful if you’re downloading iPhone OS from any sites other than Apple’s own.
Not here and not here.